EP3972746C0 - Capteurs et procédé pour générer des champs sonores codés spatialement au moyen d'ouvertures émettant un bruit présentant une fréquence et une bande passante variant spatialement - Google Patents

Capteurs et procédé pour générer des champs sonores codés spatialement au moyen d'ouvertures émettant un bruit présentant une fréquence et une bande passante variant spatialement

Info

Publication number
EP3972746C0
EP3972746C0 EP20705655.7A EP20705655A EP3972746C0 EP 3972746 C0 EP3972746 C0 EP 3972746C0 EP 20705655 A EP20705655 A EP 20705655A EP 3972746 C0 EP3972746 C0 EP 3972746C0
Authority
EP
European Patent Office
Prior art keywords
sound
spatially
bandwidth
sensors
varying frequency
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP20705655.7A
Other languages
German (de)
English (en)
Other versions
EP3972746B1 (fr
EP3972746A1 (fr
Inventor
Steffen Tretbar
Marc Fournelle
Daniel Schmitt
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung eV
Original Assignee
Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung eV
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung eV filed Critical Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung eV
Publication of EP3972746A1 publication Critical patent/EP3972746A1/fr
Application granted granted Critical
Publication of EP3972746C0 publication Critical patent/EP3972746C0/fr
Publication of EP3972746B1 publication Critical patent/EP3972746B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
    • B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
    • B06B1/00—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
    • B06B1/02—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy
    • B06B1/06—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction
    • B06B1/0644—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction using a single piezoelectric element
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
    • B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
    • B06B1/00—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
    • B06B1/02—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy
    • B06B1/0292—Electrostatic transducers, e.g. electret-type
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N30/00—Piezoelectric or electrostrictive devices
    • H10N30/30—Piezoelectric or electrostrictive devices with mechanical input and electrical output, e.g. functioning as generators or sensors
    • H10N30/302—Sensors

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transducers For Ultrasonic Waves (AREA)
  • Ultra Sonic Daignosis Equipment (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
EP20705655.7A 2019-05-23 2020-02-12 Capteurs et procédé pour générer des champs sonores codés spatialement au moyen d'ouvertures émettant un bruit présentant une fréquence et une bande passante variant spatialement Active EP3972746B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP19176306 2019-05-23
PCT/EP2020/053653 WO2020233842A1 (fr) 2019-05-23 2020-02-12 Capteurs et procédé pour générer des champs sonores codés spatialement au moyen d'ouvertures émettant un bruit présentant une fréquence et une bande passante variant spatialement

Publications (3)

Publication Number Publication Date
EP3972746A1 EP3972746A1 (fr) 2022-03-30
EP3972746C0 true EP3972746C0 (fr) 2024-04-17
EP3972746B1 EP3972746B1 (fr) 2024-04-17

Family

ID=67437302

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20705655.7A Active EP3972746B1 (fr) 2019-05-23 2020-02-12 Capteurs et procédé pour générer des champs sonores codés spatialement au moyen d'ouvertures émettant un bruit présentant une fréquence et une bande passante variant spatialement

Country Status (4)

Country Link
US (1) US20220250117A1 (fr)
EP (1) EP3972746B1 (fr)
CN (1) CN113891767B (fr)
WO (1) WO2020233842A1 (fr)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5834871A (en) * 1996-08-05 1998-11-10 Puskas; William L. Apparatus and methods for cleaning and/or processing delicate parts
US5619476A (en) * 1994-10-21 1997-04-08 The Board Of Trustees Of The Leland Stanford Jr. Univ. Electrostatic ultrasonic transducer
US7589456B2 (en) * 2005-06-14 2009-09-15 Siemens Medical Solutions Usa, Inc. Digital capacitive membrane transducer
US10322949B2 (en) * 2012-03-15 2019-06-18 Flodesign Sonics, Inc. Transducer and reflector configurations for an acoustophoretic device
CA3017528A1 (fr) * 2016-04-14 2017-09-21 Bart Lipkens Dispositif d'acoustophorese a plusieurs etages

Also Published As

Publication number Publication date
CN113891767A (zh) 2022-01-04
US20220250117A1 (en) 2022-08-11
WO2020233842A1 (fr) 2020-11-26
EP3972746B1 (fr) 2024-04-17
CN113891767B (zh) 2023-04-07
EP3972746A1 (fr) 2022-03-30

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